PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • It certainly seems the problem is not with whether it is oil or NG, or the particular formation, the problem lies in the fracking technology itself.
http://www.w3.org/ns/prov#wasQuotedFrom
  • dailykos.com